Fairchild FSA3357 is a high-performance analog switch or 3:1 multiplexer/demultiplexer with advanced sub-micron CMOS technology to achieve high speed enable and disable times and low On Resistance. The device is specified to operate over the 1.65 to 5.5V VCC operating range. The control input tolerates voltages up to 5.5V independent of the VCC operating range. Some possible applications are:
- cell phones
- PDAs
- video
Fairchild FSA3357 is a high-performance analog switch or 3:1 multiplexer/demultiplexer with advanced sub-micron CMOS technology to achieve high speed enable and disable times and low On Resistance. The device is specified to operate over the 1.65 to 5.5V VCC operating range. The control input tolerates voltages up to 5.5V independent of the VCC operating range. Some possible applications are:
- cell phones
- PDAs
- video
© 2005 Fairchild Semiconductor Corporation DS500805 www.fairchildsemi.com
December 2002
Revised August 2005
FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
FSA3357
Low Voltage SP3T Analog Switch
(3:1 Multiplexer/Demultiplexer)
General Description
The FSA3357 is a high performance, single-pole/triple-throw
(SP3T) Analog Switch or 3:1 Multiplexer/Demultiplexer. The
device is fabricated with advanced sub-micron CMOS technol-
ogy to achieve high speed enable and disable times and low On
Resistance. The break before make select circuitry prevents
disruption of signals on the B
0
, B
1
, or B
2
Ports due to the
switches temporarily being enabled during select pin switching.
The device is specified to operate over the 1.65 to 5.5V V
CC
operating range. The control input tolerates voltages up to 5.5V
independent of the V
CC
operating range.
Features
Useful in both analog and digital applications
Space saving US8 8-lead surface mount package
Low On Resistance; 9 on typ @ 3.3V V
CC
Broad V
CC
operating range; 1.65V to 5.5V
Rail-to-Rail signal handling
Power down high impedance control input
Overvoltage tolerance of control input to 7.0V
Break before make enable circuitry
250 MHz - 3dB bandwidth
Space saving Pb-Free MicroPak packaging
Applications
Cell Phone
PDA
Video
Ordering Code:
Pb-Free package per JEDEC J-STD-020B.
MicroPak is a trademark of Fairchild Semiconductor Corporation.
Product
Package Description Supplied AsOrder Package Code
Number Number Top Mark
FSA3357K8X MAB08A A357 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
FSA3357L8X MAC08A FE Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5k Units on Tape and Reel
www.fairchildsemi.com 2
FSA3357
Analog Symbols
Pin Assignments for US8
(Top View)
Pin Assignments for MicroPak
(Top Through View)
Connection Diagram
(Top View)
Pin Descriptions
Function Table
Pin Names Description
A
1
, B
0
, B
1
, B
2
Data Ports
S
1
, S
2
Control Input
S
1
S
2
Function
0 0 No Connection
10B
0
Connected to A
01B
1
Connected to A
11B
2
Connected to A
3 www.fairchildsemi.com
FSA3357
Absolute Maximum Ratings(Note 1)
Recommended Operating Conditions
(Note 3)
Note 1: Absolute maximum ratings are DC values beyond which the device may be
damaged or have its useful life impaired. The datasheet specifications should be met,
without exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. Fairchild does not recommend oper-
ation outside datasheet specifications.
Note 2: The input and output negative voltage ratings may be exceeded if the input
and output diode current ratings are observed.
Note 3: Control inputs must be held HIGH or LOW, they must not float.
DC Electrical Characteristics
Supply Voltage (V
CC
) 0.5V to 7.0V
DC Switch Voltage (V
S
) (Note 2) 0.5V to V
CC
0.5V
DC Input Voltage (V
IN
) (Note 2) 0.5V to 7.0V
DC Input Diode Current (I
IK
)
@ (I
IK
) V
IN
0V 50 mA
DC Output Current (I
OUT
) 128 mA
DC V
CC
or Ground Current (I
CC
/I
GND
) 100 mA
Storage Temperature Range (T
STG
) 65 C to 150 C
Junction Temperature under Bias (T
J
) 150 C
Junction Lead Temperature (T
L
)
(Soldering, 10 seconds) 260
C
Power Dissipation (P
D
) @ 85 C180 mW
Supply Voltage Operating (V
CC
) 1.65V to 5.5V
Control Input Voltage (V
IN
)0V to V
CC
Switch Input Voltage (V
IN
)0V to V
CC
Output Voltage (V
OUT
)0V to V
CC
Operating Temperature (T
A
) 40 C to 85 C
Input Rise and Fall Time (t
r
, t
f
)
Control Input V
CC
= 2.3V - 3.6V 0 ns/V to 10 ns/V
Control Input V
CC
= 4.5V - 5.5V 0 ns/V to 5 ns/V
Thermal Resistance (
JA
) 250 C/W
MicroPak 8L Package 224
C/W
Symbol Parameter
V
CC
T
A
= 25 CT
A
= 40 C to 85 C
Units Conditions
(V) Min Typ Max Min Max
V
IH
HIGH Level 1.65 1.95 0.75 V
CC
0.75 V
CC
V
Input Voltage 2.3 5.5 0.7 V
CC
0.7 V
CC
V
IL
LOW Level 1.65 1.95 0.25 V
CC
0.25 V
CC
V
Input Voltage 2.3 5.5 0.3 V
CC
0.3 V
CC
I
IN
Input Leakage Current 0 5.5 0.1 1.0 A0 V
IN
5.5V
I
OFF
OFF State Leakage Current 1.65 5.5 0.1 1.0 A0 A, B
n
V
CC
R
ON
Switch On Resistance 4.5 5.0 7.0 7.0 V
IN
= 0V, I
O
= 30 mA
(Note 4) 6.0 12.0 12.0 V
IN
= 2.4V, I
O
= 30 mA
7.0 15.0 15.0 V
IN
= 4.5V, I
O
= 30 mA
3.0 6.5 9.0 9.0 V
IN
= 0V, I
O
= 24 mA
9.0 20.0 20.0 V
IN
= 3V, I
O
= 24 mA
2.3 8.0 12.0 12.0 V
IN
= 0V, I
O
= 8 mA
11.0 30.0 30.0 V
IN
= 2.3V, I
O
= 8 mA
1.65 10.0 20.0 20.0 V
IN
= 0V, I
O
= 4 mA
17.0 50.0 50.0 V
IN
= 1.65V, I
O
= 4 mA
I
CC
Quiescent Supply Current
5.5 1.0 10.0 A
V
IN
= V
CC
or GND
All Channels ON or OFF I
OUT
= 0
ASR Analog Signal Range V
CC
0.0 V
CC
0.0 V
CC
V
R
ON
On Resistance Match 4.5 0.15 I
A
= 30 mA, V
Bn
= 3.15
Between Channels 3.0 0.22 I
A
= 24 mA, V
Bn
= 2.1
(Note 4)(Note 5)(Note 6) 2.3 0.31 I
A
= 8 mA, V
Bn
= 1.6
1.65 0.62 I
A
= 4 mA, V
Bn
= 1.15
R
flat
On Resistance Flatness 5.0 6.0 I
A
= 30 mA, 0 V
Bn
V
CC
(Note 4)(Note 5)(Note 7) 3.3 12.0 I
A
= 24 mA, 0 V
Bn
V
CC
2.5 40.0 I
A
= 8 mA, 0 V
Bn
V
CC
1.8 140.0 I
A
= 4 mA, 0 V
Bn
V
CC
www.fairchildsemi.com 4
FSA3357
DC Electrical Characteristics (Continued)
Note 4: Measured by the voltage drop between A and B
n
pins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A
or B
n
Ports).
Note 5: Parameter is characterized but not tested in production.
Note 6: R
ON
= R
ON
max R
ON
min measured at identical V
CC
, temperature and voltage levels.
Note 7: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions.
AC Electrical Characteristics
Note 8: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resistance of the switch and
the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Note 9: Guaranteed by Design.
Note 10: Off Isolation = 20 log
10
[V
A
/ V
Bn
]
Capacitance (Note 11)
Note 11: T
A
= 25 C, f = 1 MHz, Capacitance is characterized but not tested in production.
Symbol Parameter
V
CC
T
A
= 25 CT
A
= 40 C to 85 C
Units Conditions
Figure
(V) Min Typ Max Min Max Number
t
PHL
Propagation Delay 1.65 1.95 2.0
ns V
I
= OPEN
Figures
1, 2
t
PLH
Bus to Bus 2.3 2.7 1.1
(Note 8) 3.0 3.6 0.7
4.5 5.5 0.4
t
PZL
Output Enable Time 1.65 1.95 5.0 32.0 5.0 34.0
ns
Figures
1, 2
t
PZH
Turn on Time 2.3 2.7 3.0 15.0 3.0 16.5 V
I
= 2 x V
CC
for t
PZL
(A to B
n
)3.0 3.6 2.0 9.5 2.0 11.0 V
I
= 0V for t
PZH
4.5 5.5 1.5 6.5 1.5 7.0
t
PLZ
Output Disable Time 1.65 1.95 3.0 14.0 3.0 14.5
ns
Figures
1, 2
t
PHZ
Turn Off Time 2.3 2.7 2.0 7.2 2.0 7.8 V
I
= 2 x V
CC
for t
PLZ
(A Port to B
n
Port) 3.0 3.6 1.5 5.1 1.5 5.5 V
I
= 0V for t
PHZ
4.5 5.5 0.8 3.7 0.8 4.0
t
B-M
Break Before Make Time 1.65 1.95 0.5 0.5
ns Figure 3
(Note 9) 2.3 2.7 0.5 0.5
3.0 3.6 0.5 0.5
4.5 5.5 0.5 0.5
Q Charge Injection (Note 9) 5.0 3.0
pC
C
L
= 0.1 nF, V
GEN
= 0V
Figure 4
3.3 2.0 R
GEN
= 0
OIRR Off Isolation (Note 10) 1.65 5.5 58.0
dB
R
L
= 50
Figure 5
f = 10MHz
Xtalk Crosstalk 1.65 5.5 60.0
dB
R
L
= 50
Figure 6
f = 10MHz
BW 3dB Bandwidth 1.65 5.5 250.0 MHz R
L
= 50 Figure 9
THD Total Harmonic Distortion
5.0 .01 %
R
L
= 600
(Note 9) 0.5 V
P-P
f = 600 Hz to 20 KHz
Symbol Parameter Typ Max Units Conditions
Figure
Number
C
IN
Control Pin Input Capacitance 2.0 pF V
CC
= 0V
C
IO-B
B Port Off Capacitance 3.6 pF V
CC
= 5.0V Figure 7
C
IOA-ON
A Port Capacitance When Switch Is Enabled 14.5 pF V
CC
= 5.0V Figure 8
5 www.fairchildsemi.com
FSA3357
AC Loading and Waveforms
Note: Input driven by 50 source terminated in 50
Note: C
L
includes load and stray capacitance
Note: Input PRR = 1.0 MHz; t
W
= 500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
FIGURE 3. Break Before Make Interval Timing
www.fairchildsemi.com 6
FSA3357
AC Loading and Waveforms (Continued)
FIGURE 4. Charge Injection Test
FIGURE 5. Off Isolation
FIGURE 6. Crosstalk
FIGURE 7. Channel Off Capacitance
FIGURE 8. Channel On Capacitance
FIGURE 9. Bandwidth
7 www.fairchildsemi.com
FSA3357
Tape and Reel Specification
TAPE FORMAT for US8
TAPE DIMENSIONS inches (millimeters)
REEL DIMENSIONS inches (millimeters)
Package Tape Number Cavity Cover Tape
Designator Section Cavities Status Status
Leader (Start End) 125 (typ) Empty Sealed
K8X Carrier 250 Filled Sealed
Trailer (Hub End) 75 (typ) Empty Sealed
Tape
Size
ABCDN W1 W2 W3
8 mm
7.0 0.059 0.512 0.795 2.165 0.331
0.059/
0.000
0.567 W1
0.078/ 0.039
(177.8) (1.50) (13.00) (20.20) (55.00) (8.40
1.50/ 0.00) (14.40) (W1 2.00/ 1.00)
www.fairchildsemi.com 8
FSA3357
TAPE FORMAT for MicroPak
REEL DIMENSIONS inches (millimeters)
Package Tape Number Cavity Cover Tape
Designator Section Cavities Status Status
Leader (Start End) 125 (typ) Empty Sealed
L8X Carrier 5000 Filled Sealed
Trailer (Hub End) 75 (typ) Empty Sealed
Tape SizeABCDN W1 W2 W3
8 mm
7.0 0.059 0.512 0.795 2.165 0.331
0.059/ 0.000 0.567 W1 0.078/ 0.039
(177.8) (1.50) (13.00) (20.20) (55.00) (8.40
1.50/ 0.00) (14.40) (W1 2.00/ 1.00)
9 www.fairchildsemi.com
FSA3357
Physical Dimensions inches (millimeters) unless otherwise noted
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide
Package Number MAB08A
www.fairchildsemi.com 10
FSA3357
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 8-Lead MicroPak, 1.6 mm Wide
Package Number MAC08A
11 www.fairchildsemi.com
FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY
ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT
CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION
As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, or (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be reason-
ably expected to cause the failure of the life support device
or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of terms
Datasheet Identification Product Status Definition
Advance Information Formative or In Design This datasheet contains the design specifications for product develop-
ment. Specifications may change in any manner without notice.
Preliminary First Production This datasheet contains preliminary data, and supplementary data will
be published at a later date. Fairchild Semiconductor reserves the right
to make changes at any time without notice in order to improve design.
No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor
reserves the right to make changes at any time without notice in order
to improve design.
Obsolete Not In Production This datasheet contains specifications on a product that has been dis-
continued by Fairchild Semiconductor. The datasheet is printed for ref-
erence information only.
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Fairchild FSA3357 is a high-performance analog switch or 3:1 multiplexer/demultiplexer with advanced sub-micron CMOS technology to achieve high speed enable and disable times and low On Resistance. The device is specified to operate over the 1.65 to 5.5V VCC operating range. The control input tolerates voltages up to 5.5V independent of the VCC operating range. Some possible applications are:
- cell phones
- PDAs
- video
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